Commit Graph

334 Commits

Author SHA1 Message Date
Philippe Mathieu-Daudé
ae412c0210 target/hexagon: Use explicit little-endian LD/ST API
The Hexagon architecture uses little endianness. Directly use
the little-endian LD/ST API.

Mechanical change using:

  $ end=le; \
    for acc in uw w l q tul; do \
      sed -i -e "s/ld${acc}_p(/ld${acc}_${end}_p(/" \
             -e "s/st${acc}_p(/st${acc}_${end}_p(/" \
        $(git grep -wlE '(ld|st)t?u?[wlq]_p' target/hexagon/); \
    done

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241004163042.85922-8-philmd@linaro.org>
2024-10-15 11:55:09 -03:00
Philippe Mathieu-Daudé
39914ae894 target/hexagon: Replace ldtul_p() -> ldl_p()
The Hexagon target is only built for 32-bit.
Using ldtul_p() is pointless, replace by ldl_p().

Mechanical change doing:

  $ sed -i -e 's/ldtul_p/ldl_p/' \
      $(git grep -wl ldtul_p target/hexagon/)

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241004163042.85922-3-philmd@linaro.org>
2024-10-15 11:55:09 -03:00
Philippe Mathieu-Daudé
b8daa5fc8b target/hexagon: Rename macros.inc -> macros.h.inc
Since commits 139c1837db ("meson: rename included C source files
to .c.inc") and 0979ed017f ("meson: rename .inc.h files to .h.inc"),
EMU standard procedure for included header files is to use *.h.inc.

Besides, since commit 6a0057aa22 ("docs/devel: make a statement
about includes") this is documented in the Coding Style:

  If you do use template header files they should be named with
  the ``.c.inc`` or ``.h.inc`` suffix to make it clear they are
  being included for expansion.

Therefore rename "macros.inc" as "macros.h.inc".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-09-20 10:07:04 +03:00
Alyssa Ross
fe68cc0923 target/hexagon: don't look for static glib
When cross compiling QEMU configured with --static, I've been getting
configure errors like the following:

    Build-time dependency glib-2.0 found: NO

    ../target/hexagon/meson.build:303:15: ERROR: Dependency lookup for glib-2.0 with method 'pkgconfig' failed: Could not generate libs for glib-2.0:
    Package libpcre2-8 was not found in the pkg-config search path.
    Perhaps you should add the directory containing `libpcre2-8.pc'
    to the PKG_CONFIG_PATH environment variable
    Package 'libpcre2-8', required by 'glib-2.0', not found

This happens because --static sets the prefer_static Meson option, but
my build machine doesn't have a static libpcre2.  I don't think it
makes sense to insist that native dependencies are static, just
because I want the non-native QEMU binaries to be static.

Signed-off-by: Alyssa Ross <hi@alyssa.is>
Link: https://lore.kernel.org/r/20240805104921.4035256-1-hi@alyssa.is
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-08-13 11:33:31 +02:00
Brian Cain
47f3361a3a target/hexagon: switch to dc set_props() list
Define a hexagon_cpu_properties list to match the idiom used
by other targets.

Signed-off-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
2024-08-07 20:37:21 -07:00
Brian Cain
48ac9e885e target/hexagon: define a v66 CPU
For now, v66 behavior is the same as other CPUs.

Signed-off-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
2024-08-07 20:37:21 -07:00
Anton Johansson
f51e30ff35 target/hexagon/idef-parser: Remove self-assignment
The self assignment is clearly useless, and @1.last_column does not have
to be set for an expression with only a single token, so remove it.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230713120853.27023-1-anjo@rev.ng>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-08-07 20:37:19 -07:00
Taylor Simpson
523e45ac5b Hexagon: lldb read/write predicate registers p0/p1/p2/p3
hexagon-core.xml only exposes register p3_0 which is an alias that
aggregates the predicate registers.  It is more convenient for users
to interact directly with the predicate registers.

Tested with lldb downloaded from this location
https://github.com/llvm/llvm-project/releases/download/llvmorg-18.1.4/clang+llvm-18.1.4-x86_64-linux-gnu-ubuntu-18.04.tar.xz

BEFORE:
(lldb) reg read p3_0
    p3_0 = 0x00000000
(lldb) reg read p0
error: Invalid register name 'p0'.
(lldb) reg write p1 0xf
error: Register not found for 'p1'.

AFTER:
(lldb) reg read p3_0
    p3_0 = 0x00000000
(lldb) reg read p0
      p0 = 0x00
(lldb) reg read -s 1
Predicate Registers:
        p0 = 0x00
        p1 = 0x00
        p2 = 0x00
        p3 = 0x00

(lldb) reg write p1 0xf
(lldb) reg read p3_0
    p3_0 = 0x00000f00
(lldb) reg write p3_0 0xff00ff00
(lldb) reg read -s 1
Predicate Registers:
        p0 = 0x00
        p1 = 0xff
        p2 = 0x00
        p3 = 0xff

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Message-Id: <20240613182209.140082-1-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-08-07 20:34:41 -07:00
Matheus Tavares Bernardino
6146060a68 Hexagon: fix F2_conv_* instructions for negative zero
The implementation for these instructions handles -0 as an invalid float
point value, whereas the Hexagon hardware considers it the same as +0
(which is valid). Let's fix that and add a regression test.

Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-08-07 20:34:25 -07:00
Zhao Liu
29ea19465b target/hexagon/imported/mmvec: Fix superfluous trailing semicolon
Fix the superfluous trailing semicolon in target/hexagon/imported/mmvec/
ext.idef.

Cc: Brian Cain <bcain@quicinc.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-07-17 14:04:15 +03:00
Anton Johansson
1967a1ea98 target/hexagon: idef-parser simplify predicate init
Only predicate instruction arguments need to be initialized by
idef-parser. This commit removes registers from the init_list and
simplifies gen_inst_init_args() slightly.

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240523125901.27797-5-anjo@rev.ng>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-06-08 17:49:36 -07:00
Anton Johansson
95408ad8e2 target/hexagon: idef-parser fix leak of init_list
gen_inst_init_args() is called for instructions using a predicate as an
rvalue. Upon first call, the list of arguments which might need
initialization init_list is freed to indicate that they have been
processed. For instructions without an rvalue predicate,
gen_inst_init_args() isn't called and init_list will never be freed.

Free init_list from free_instruction() if it hasn't already been freed.
A comment in free_instruction is also updated.

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240523125901.27797-4-anjo@rev.ng>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-06-08 17:49:27 -07:00
Anton Johansson
348fec2afe target/hexagon: idef-parser remove undefined functions
Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240523125901.27797-3-anjo@rev.ng>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-06-08 17:49:23 -07:00
Anton Johansson
49c1f7a472 target/hexagon: idef-parser remove unused defines
Before switching to GArray/g_string_printf we used fixed size arrays for
output buffers and instructions arguments among other things.

Macros defining the sizes of these buffers were left behind, remove
them.

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240523125901.27797-2-anjo@rev.ng>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-06-08 17:49:16 -07:00
Matheus Tavares Bernardino
e1b526f1d8 Hexagon: add PC alignment check and exception
The Hexagon Programmer's Reference Manual says that the exception 0x1e
should be raised upon an unaligned program counter. Let's implement that
and also add some tests.

Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <277b7aeda2c717a96d4dde936b3ac77707cb6517.1714755107.git.quic_mathbern@quicinc.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-06-08 17:48:50 -07:00
Matheus Tavares Bernardino
a1852002c7 Hexagon: fix HVX store new
At 09a7e7db0f (Hexagon (target/hexagon) Remove uses of
op_regs_generated.h.inc, 2024-03-06), we've changed the logic of
check_new_value() to use the new pre-calculated
packet->insn[...].dest_idx instead of calculating the index on the fly
using opcode_reginfo[...]. The dest_idx index is calculated roughly like
the following:

    for reg in iset[tag]["syntax"]:
        if reg.is_written():
            dest_idx = regno
            break

Thus, we take the first register that is writtable. Before that,
however, we also used to follow an alphabetical order on the register
type: 'd', 'e', 'x', and 'y'. No longer following that makes us select
the wrong register index and the HVX store new instruction does not
update the memory like expected.

Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Message-Id: <f548dc1c240819c724245e887f29f918441e9125.1716220379.git.quic_mathbern@quicinc.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-06-08 17:48:50 -07:00
Richard Henderson
e8939e801c target/hexagon: Use translator_ldl in pkt_crosses_page
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-15 08:55:19 +02:00
Richard Henderson
962a145cdc accel/tcg: Provide default implementation of disas_log
Almost all of the disas_log implementations are identical.
Unify them within translator_loop.

Drop extra Priv/Virt logging from target/riscv.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-15 08:55:18 +02:00
Richard Henderson
8018947230 accel/tcg: Use vaddr in translator_ld*
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-15 08:54:31 +02:00
Richard Henderson
873f9ca385 Accelerator patches
- Extract page-protection definitions to page-protection.h
 - Rework in accel/tcg in preparation of extracting TCG fields from CPUState
 - More uses of get_task_state() in user emulation
 - Xen refactors in preparation for adding multiple map caches (Juergen & Edgar)
 - MAINTAINERS updates (Aleksandar and Bin)
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE+qvnXhKRciHc/Wuy4+MsLN6twN4FAmY40CAACgkQ4+MsLN6t
 wN5drxAA1oIsuUzpAJmlMIxZwlzbICiuexgn/HH9DwWNlrarKo7V1l4YB8jd9WOg
 IKuj7c39kJKsDEB8BXApYwcly+l7DYdnAAI8Z7a+eN+ffKNl/0XBaLjsGf58RNwY
 fb39/cXWI9ZxKxsHMSyjpiu68gOGvZ5JJqa30Fr+eOGuug9Fn/fOe1zC6l/dMagy
 Dnym72stpD+hcsN5sVwohTBIk+7g9og1O/ctRx6Q3ZCOPz4p0+JNf8VUu43/reaR
 294yRK++JrSMhOVFRzP+FH1G25NxiOrVCFXZsUTYU+qPDtdiKtjH1keI/sk7rwZ7
 U573lesl7ewQFf1PvMdaVf0TrQyOe6kUGr9Mn2k8+KgjYRAjTAQk8V4Ric/+xXSU
 0rd7Cz7lyQ8jm0DoOElROv+lTDQs4dvm3BopF3Bojo4xHLHd3SFhROVPG4tvGQ3H
 72Q5UPR2Jr2QZKiImvPceUOg0z5XxoN6KRUkSEpMFOiTRkbwnrH59z/qPijUpe6v
 8l5IlI9GjwkL7pcRensp1VC6e9KC7F5Od1J/2RLDw3UQllMQXqVw2bxD3CEtDRJL
 QSZoS4d1jUCW4iAYdqh/8+2cOIPiCJ4ai5u7lSdjrIJkRErm32FV/pQLZauoHlT5
 eTPUgzDoRXVgI1X1slTpVXlEEvRNbhZqSkYLkXr80MLn5hTafo0=
 =3Qkg
 -----END PGP SIGNATURE-----

Merge tag 'accel-20240506' of https://github.com/philmd/qemu into staging

Accelerator patches

- Extract page-protection definitions to page-protection.h
- Rework in accel/tcg in preparation of extracting TCG fields from CPUState
- More uses of get_task_state() in user emulation
- Xen refactors in preparation for adding multiple map caches (Juergen & Edgar)
- MAINTAINERS updates (Aleksandar and Bin)

# -----BEGIN PGP SIGNATURE-----
#
# iQIzBAABCAAdFiEE+qvnXhKRciHc/Wuy4+MsLN6twN4FAmY40CAACgkQ4+MsLN6t
# wN5drxAA1oIsuUzpAJmlMIxZwlzbICiuexgn/HH9DwWNlrarKo7V1l4YB8jd9WOg
# IKuj7c39kJKsDEB8BXApYwcly+l7DYdnAAI8Z7a+eN+ffKNl/0XBaLjsGf58RNwY
# fb39/cXWI9ZxKxsHMSyjpiu68gOGvZ5JJqa30Fr+eOGuug9Fn/fOe1zC6l/dMagy
# Dnym72stpD+hcsN5sVwohTBIk+7g9og1O/ctRx6Q3ZCOPz4p0+JNf8VUu43/reaR
# 294yRK++JrSMhOVFRzP+FH1G25NxiOrVCFXZsUTYU+qPDtdiKtjH1keI/sk7rwZ7
# U573lesl7ewQFf1PvMdaVf0TrQyOe6kUGr9Mn2k8+KgjYRAjTAQk8V4Ric/+xXSU
# 0rd7Cz7lyQ8jm0DoOElROv+lTDQs4dvm3BopF3Bojo4xHLHd3SFhROVPG4tvGQ3H
# 72Q5UPR2Jr2QZKiImvPceUOg0z5XxoN6KRUkSEpMFOiTRkbwnrH59z/qPijUpe6v
# 8l5IlI9GjwkL7pcRensp1VC6e9KC7F5Od1J/2RLDw3UQllMQXqVw2bxD3CEtDRJL
# QSZoS4d1jUCW4iAYdqh/8+2cOIPiCJ4ai5u7lSdjrIJkRErm32FV/pQLZauoHlT5
# eTPUgzDoRXVgI1X1slTpVXlEEvRNbhZqSkYLkXr80MLn5hTafo0=
# =3Qkg
# -----END PGP SIGNATURE-----
# gpg: Signature made Mon 06 May 2024 05:42:08 AM PDT
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]

* tag 'accel-20240506' of https://github.com/philmd/qemu: (28 commits)
  MAINTAINERS: Update my email address
  MAINTAINERS: Update Aleksandar Rikalo email
  system: Pass RAM MemoryRegion and is_write in xen_map_cache()
  xen: mapcache: Break out xen_map_cache_init_single()
  xen: mapcache: Break out xen_invalidate_map_cache_single()
  xen: mapcache: Refactor xen_invalidate_map_cache_entry_unlocked
  xen: mapcache: Refactor xen_replace_cache_entry_unlocked
  xen: mapcache: Break out xen_ram_addr_from_mapcache_single
  xen: mapcache: Refactor xen_remap_bucket for multi-instance
  xen: mapcache: Refactor xen_map_cache for multi-instance
  xen: mapcache: Refactor lock functions for multi-instance
  xen: let xen_ram_addr_from_mapcache() return -1 in case of not found entry
  system: let qemu_map_ram_ptr() use qemu_ram_ptr_length()
  user: Use get_task_state() helper
  user: Declare get_task_state() once in 'accel/tcg/vcpu-state.h'
  user: Forward declare TaskState type definition
  accel/tcg: Move @plugin_mem_cbs from CPUState to CPUNegativeOffsetState
  accel/tcg: Restrict cpu_plugin_mem_cbs_enabled() to TCG
  accel/tcg: Restrict qemu_plugin_vcpu_exit_hook() to TCG plugins
  accel/tcg: Update CPUNegativeOffsetState::can_do_io field documentation
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-06 10:19:10 -07:00
Philippe Mathieu-Daudé
b254c342cf accel/tcg: Access tcg_cflags with getter / setter
Access the CPUState::tcg_cflags via tcg_cflags_has() and
tcg_cflags_set() helpers.

Mechanical change using the following Coccinelle spatch script:

  @@
  expression cpu;
  expression flags;
  @@
  -     cpu->tcg_cflags & flags
  +     tcg_cflags_has(cpu, flags)

  @@
  expression cpu;
  expression flags;
  @@
  -     (tcg_cflags_has(cpu, flags))
  +     tcg_cflags_has(cpu, flags)

  @@
  expression cpu;
  expression flags;
  @@
  -     cpu->tcg_cflags |= flags;
  +     tcg_cflags_set(cpu, flags);

Then manually moving the declarations, and adding both
tcg_cflags_has() and tcg_cflags_set() definitions.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240427155714.53669-15-philmd@linaro.org>
2024-05-06 11:21:05 +02:00
Taylor Simpson
a469666149 Hexagon (target/hexagon) Remove hex_common.read_attribs_file
The attribinfo data structure is not used
Adjust the command-line arguments to the python scripts
Add hex_common.read_common_files for TCG/helper generation scripts

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240307032327.4799-10-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Taylor Simpson
582c59efae Hexagon (target/hexagon) Remove gen_shortcode.py
This data structure is not used

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240307032327.4799-9-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Taylor Simpson
b45c1b5124 Hexagon (target/hexagon) Remove gen_op_regs.py
Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240307032327.4799-8-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Taylor Simpson
09a7e7db0f Hexagon (target/hexagon) Remove uses of op_regs_generated.h.inc
Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240307032327.4799-7-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Taylor Simpson
4614b8f36a Hexagon (target/hexagon) Mark has_pred_dest in trans functions
Check that the value matches opcode_wregs

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240307032327.4799-5-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Taylor Simpson
325a64af06 Hexagon (target/hexagon) Mark dest_idx in trans functions
Check that the value matches opcode_reginfo/opcode_wregs

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240307032327.4799-4-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Taylor Simpson
9196381993 Hexagon (target/hexagon) Mark new_read_idx in trans functions
Check that the value matches opcode_reginfo

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240307032327.4799-3-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Taylor Simpson
2720bd1dbd Hexagon (target/hexagon) Add is_old/is_new to Register class
Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240307032327.4799-2-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Taylor Simpson
2f0a771ddc Hexagon (target/hexagon) Only pass env to generated helper when needed
Currently, we pass env to every generated helper.  When the semantics of
the instruction only depend on the arguments, this is unnecessary and
adds extra overhead to the helper call.

We add the TCG_CALL_NO_RWG_SE flag to any non-HVX helpers that don't get
the ptr to env.

The A2_nop and SA1_setin1 instructions end up with no arguments.  This
results in a "old-style function definition" error from the compiler, so
we write overrides for them.

With this change, the number of helpers with env argument is
    idef-parser enabled:    329 total, 23 with env
    idef-parser disabled:   1543 total, 550 with env

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Tested-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20240214042726.19290-4-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Taylor Simpson
f7be65fbbf Hexagon (target/hexagon) Pass SP explicitly to helpers that need it
Rather than reading SP from the env, pass it explicitly

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Tested-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240214042726.19290-3-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Taylor Simpson
850d06225b Hexagon (target/hexagon) Pass P0 explicitly to helpers that need it
Rather than reading P0 from the env, pass it explicitly

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Tested-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240214042726.19290-2-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Taylor Simpson
763d2ce7c4 Hexagon (target/hexagon) Enable more short-circuit packets (HVX)
Look for read-after-write instead of overlap of reads and writes

HVX instructions with helpers have pass-by-reference semantics, so
we check for overlaps of reads and writes within the same instruction.

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240201103340.119081-4-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Taylor Simpson
bd983f68ac Hexagon (target/hexagon) Enable more short-circuit packets (scalar core)
Look for read-after-write instead of overlap of reads and writes

Here is an example with overalp but no read-after-write:
0x000200fc:  0x38103876	{	R0 = add(R0,R1); R6 = add(R6,R7) }

BEFORE:
 ---- 00000000000200fc
 mov_i32 loc2,$0x0
 mov_i32 loc2,r0
 add_i32 loc3,loc2,r1
 mov_i32 loc2,loc3
 mov_i32 loc4,$0x0
 mov_i32 loc4,r6
 add_i32 loc5,loc4,r7
 mov_i32 loc4,loc5
 mov_i32 r0,loc2
 mov_i32 r6,loc4

AFTER:
 ---- 00000000000200fc
 add_i32 loc2,r0,r1
 mov_i32 r0,loc2
 add_i32 loc3,r6,r7
 mov_i32 r6,loc3

We can also short-circuit packets with .new values by reading from the
real destination instead of the temporary.
0x00020100:  0x78005ff3	{	R19 = #0xff
0x00020104:  0x2002e204		if (cmp.eq(N19.new,R2)) jump:t PC+8 }

BEFORE:
 ---- 0000000000020100
 mov_i32 pc,$0x20108
 mov_i32 loc8,$0x0
 mov_i32 loc8,$0xff
 setcond_i32 loc10,loc8,r2,eq
 mov_i32 loc6,loc10
 mov_i32 r19,loc8
 add_i32 pkt_cnt,pkt_cnt,$0x2
 add_i32 insn_cnt,insn_cnt,$0x4
 brcond_i32 loc6,$0x0,eq,$L1
 goto_tb $0x0
 mov_i32 pc,$0x20108
 exit_tb $0x7fbb54000040
 set_label $L1
 goto_tb $0x1
 exit_tb $0x7fbb54000041
 set_label $L0
 exit_tb $0x7fbb54000043

AFTER:
 ---- 0000000000020100
 mov_i32 pc,$0x20108
 mov_i32 r19,$0xff
 setcond_i32 loc7,r19,r2,eq
 mov_i32 loc4,loc7
 add_i32 pkt_cnt,pkt_cnt,$0x2
 add_i32 insn_cnt,insn_cnt,$0x4
 brcond_i32 loc4,$0x0,eq,$L1
 goto_tb $0x0
 mov_i32 pc,$0x20108
 exit_tb $0x7f9764000040
 set_label $L1
 goto_tb $0x1
 exit_tb $0x7f9764000041
 set_label $L0
 exit_tb $0x7f9764000043

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240201103340.119081-3-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Taylor Simpson
76eaa97157 Hexagon (target/hexagon) Analyze reads before writes
We divide gen_analyze_funcs.py into 3 phases
    Declare the operands
    Analyze the register reads
    Analyze the register writes

We also create special versions of ctx_log_*_read for new operands
    Check that the operand is written before the read

This is a precursor to improving the analysis for short-circuiting
the packet semantics in a subsequent commit

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240201103340.119081-2-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-05-05 16:22:07 -07:00
Philippe Mathieu-Daudé
4597463b38 accel: Include missing 'exec/cpu_ldst.h' header
Theses files call cpu_ldl_code() which is declared
in "exec/cpu_ldst.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231211212003.21686-5-philmd@linaro.org>
2024-04-26 15:31:37 +02:00
Peter Maydell
ad80e36744 hw, target: Add ResetType argument to hold and exit phase methods
We pass a ResetType argument to the Resettable class enter
phase method, but we don't pass it to hold and exit, even though
the callsites have it readily available. This means that if
a device cared about the ResetType it would need to record it
in the enter phase method to use later on. Pass the type to
all three of the phase methods to avoid having to do that.

Commit created with

  for dir in hw target include; do \
      spatch --macro-file scripts/cocci-macro-file.h \
             --sp-file scripts/coccinelle/reset-type.cocci \
             --keep-comments --smpl-spacing --in-place \
             --include-headers --dir $dir; done

and no manual edits.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Luc Michel <luc.michel@amd.com>
Message-id: 20240412160809.1260625-5-peter.maydell@linaro.org
2024-04-25 10:21:06 +01:00
Philippe Mathieu-Daudé
7ab7428199 target/hexagon: Prefer fast cpu_env() over slower CPU QOM cast macro
Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240129164514.73104-12-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-03-12 11:46:17 +01:00
Philippe Mathieu-Daudé
348802b526 target: Replace CPU_GET_CLASS(cpu -> obj) in cpu_reset_hold() handler
Since CPU() macro is a simple cast, the following are equivalent:

  Object *obj;
  CPUState *cs = CPU(obj)

In order to ease static analysis when running
scripts/coccinelle/cpu_env.cocci from the previous commit,
replace:

 - CPU_GET_CLASS(cpu);
 + CPU_GET_CLASS(obj);

Most code use the 'cs' variable name for CPUState handle.
Replace few 's' -> 'cs' to unify cpu_reset_hold() style.

No logical change in this patch.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240129164514.73104-7-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-03-12 11:46:16 +01:00
Akihiko Odaki
ecd6f6a882 gdbstub: Infer number of core registers from XML
GDBFeature has the num_regs member so use it where applicable to
remove magic numbers.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20231213-gdb-v17-8-777047380591@daynix.com>
[AJB: remove core reg check from microblaze read reg]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-13-alex.bennee@linaro.org>
2024-02-28 09:09:58 +00:00
Akihiko Odaki
66260159a7 gdbstub: Change gdb_get_reg_cb and gdb_set_reg_cb
Align the parameters of gdb_get_reg_cb and gdb_set_reg_cb with the
gdb_read_register and gdb_write_register members of CPUClass to allow
to unify the logic to access registers of the core and coprocessors
in the future.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231213-gdb-v17-6-777047380591@daynix.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-11-alex.bennee@linaro.org>
2024-02-28 09:09:49 +00:00
Akihiko Odaki
ac1e867100 gdbstub: Use GDBFeature for gdb_register_coprocessor
This is a tree-wide change to introduce GDBFeature parameter to
gdb_register_coprocessor(). The new parameter just replaces num_regs
and xml parameters for now. GDBFeature will be utilized to simplify XML
lookup in a following change.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231213-gdb-v17-4-777047380591@daynix.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-9-alex.bennee@linaro.org>
2024-02-28 09:09:34 +00:00
Manos Pitsidianakis
5c192aa982 hexagon: correct typos
Correct typos automatically found with the `typos` tool
<https://crates.io/crates/typos>

Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-02-21 08:16:57 +03:00
Richard Henderson
a120d32097 include/exec: Implement cpu_mmu_index generically
For user-only mode, use MMU_USER_IDX.
For system mode, use CPUClass.mmu_index.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-02-03 16:46:10 +10:00
Richard Henderson
1764ad70ce include/qemu: Add TCGCPUOps typedef to typedefs.h
QEMU coding style recommends using structure typedefs.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-01-29 21:04:10 +10:00
Anton Johansson
85c19af63e include/exec: Use vaddr in DisasContextBase for virtual addresses
Updates target/ QEMU_LOG macros to use VADDR_PRIx for printing updated
DisasContextBase fields.

Signed-off-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20240119144024.14289-10-anjo@rev.ng>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-01-29 07:06:03 +10:00
Anton Johansson
32f0c394bb target: Use vaddr in gen_intermediate_code
Makes gen_intermediate_code() signature target agnostic so the function
can be called from accel/tcg/translate-all.c without target specifics.

Signed-off-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20240119144024.14289-9-anjo@rev.ng>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-01-29 07:06:03 +10:00
Brian Cain
bbe4209c8b target/hexagon: reduce scope of def_regnum, remove dead assignment
This is intended to address a coverity finding: CID 1527408.

Signed-off-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Message-Id: <20240114234453.4114587-1-bcain@quicinc.com>
2024-01-21 22:02:48 -08:00
Taylor Simpson
cbb9d7157d Hexagon (target/hexagon) Remove old dectree.py
Now that we are using QEMU decodetree.py, remove the old decoder

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240115221443.365287-4-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:02:44 -08:00
Taylor Simpson
f6c01009b5 Hexagon (target/hexagon) Use QEMU decodetree (16-bit instructions)
Section 10.3 of the Hexagon V73 Programmer's Reference Manual

A duplex is encoded as a 32-bit instruction with bits [15:14] set to 00.
The sub-instructions that comprise a duplex are encoded as 13-bit fields
in the duplex.

Create a decoder for each subinstruction class (a, l1, l2, s1, s2).

Extend gen_trans_funcs.py to handle all instructions rather than
filter by instruction class.

There is a g_assert_not_reached() in decode_insns() in decode.c to
verify we never try to use the old decoder on 16-bit instructions.

Signed-off-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Brian Cain <bcain@quicinc.com>
Message-Id: <20240115221443.365287-3-ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <bcain@quicinc.com>
2024-01-21 22:02:40 -08:00